I played this game on some site and I could not find it since so I decided to create a clone game. The goal of this game is to find one single field that has different color then the other fields. You have 60 seconds to find as many fields as you can.
I don’t think that yours is a clone per se, it’s just that the gameplay is very minimalistic. I think that’s a great starting point for iteration. The core gameplay is addicting.